한국전산유체공학회:학술대회논문집
- 2003.10a
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- Pages.126-127
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- 2003
The Application of Generalized Characteristic Coordinate System
- Wu Z. N. (Department of Engineering Mechanics, Tsinghua University) ;
- Chen Z. (Department of Engineering Mechanics, Tsinghua University)
- Published : 2003.10.01
Abstract
In the generalized characteristic coordinate system (GCCS) proposed by Wu and Shi [1], the frame moves at a speed which is a linear combination of the convective speed and the sound speed, thus unifying the classical Eulerian approach, Lagrangian approach, and the unified coordinate system (UCS) of Hui and his co-workers [2]. Here some properties of Euler equations in the GCCS are studied and the advantages of GCCS in capturing expansion fans and shock waves are demonstrated by the results of numerical tests.
Keywords
- Generalized characteristic coordinate system;
- Euler equations;
- Riemann problem;
- Expansion fan;
- Shock wave.